Home / 15,414.94-21,271.84-8,608.50

Finding the Fourth Proportional to 15,414.94, 21,271.84 and 8,608.50

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Solution

The fourth proportional to 15,414.94, 21,271.84 and 8,608.50 is: 11,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.94 : 21,271.84 = 8,608.50 : x
  2. Step 2: Convert to fraction form
    15,414.94/21,271.84 = 8,608.50/x
  3. Step 3: Cross multiply
    15,414.94x = 21,271.84 × 8,608.50
  4. Step 4: Simplify right side
    15,414.94x = 183,118,634.64
  5. Step 5: Solve for x
    x = 183,118,634.64/15,414.94
  6. Step 6: Final answer
    x = 11,879.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.